How to Add Favicon in Flutter Web App(Flutter 3)

Favicons are small icons that represent a website in browser tabs, bookmarks, and app shortcuts, and adding one to a Flutter Web app enhances branding and professionalism. With Flutter 3's built-in web support and PWA capabilities, it's easy to set custom favicons and app icons across different platforms. To add a favicon to a Flutter Web app, create an "icons" folder in the "web" directory and generate icon sizes using tools like favicon.io or Real Favicon Generator. Create a manifest.json file inside the "icons" folder to define the app's icons and display properties. Add the favicon link to the index.html file and register a service worker for PWA support. To test the favicon, run the app locally with the "flutter build web" and "flutter serve" commands. If the favicon doesn't update due to browser cache, press Ctrl + F5 (Windows) or Cmd + Shift + R (Mac) to reset it. If the manifest.json or web folder is corrupted, regenerate them using "flutter create .". The final folder structure should include the icons folder, manifest.json, index.html, and flutter_service_worker.js files. Adding a favicon and PWA support to a Flutter Web app provides offline access, app installation, platform icons, and automatic version updates, enhancing the user experience and branding.